Viral enteritis in babies is usually caused by infection. For example, rotavirus enteritis in the fall and winter is prevalent in babies between the ages of 6 months and 2 years. This virus is usually caused by fecal-oral transmission. That is to say, babies eat hands eat into part of the virus, play with toys with viruses, in the virus of the public facilities where touch around, may spread the virus, the virus through the mouth into the intestinal tract, will cause diarrhea and other discomforts. So viral enteritis is caused by contact transmission as well as fecal-oral transmission. Babies need to practice good hand hygiene during the high season of enteritis. If you go outside to play in public places, try not to eat your hands again, you should go home and wash your hands immediately, after washing your hands, you can only go to take food to eat, or play with your hands.